Recommended 26" Long 4-Leaf Double Eye Leaf Spring for a 4,000 lbs Axle on a Boat Trailer
Updated 07/14/2026 | Published 07/12/2026
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Question:
Im having issues finding the correct springs for my boat trailer i currently have three leaf springs but unsure the capacity of the axle. i was looking at the 4 leaf coated 26in springs double eye 4k im unsure if that would be enough
asked by: Gavin D
Expert Reply:
Hey Gavin. The 26" Long etrailer Rust-Resistant 4-Leaf Double Eye Spring item # e48SR have a 2,000 lbs capacity and are designed to work with 4,000 lbs axles but will work with lower rated ones as well. I'm sure these will be plenty capable of working with your single axle boat trailer.
Our etrailer item # e48SR leaf spring measures 26" long from the center of the spring eye to the center of the opposite spring eye where they mount to your trailer's spring hangers. You'll definitely want to measure your current springs to confirm these are the correct length. The leaf spring also has a rust and corrosion resistant coating that is rated for freshwater and salt water use.
What kind of boat do you have?
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Gavin D.
7/14/2026
i currently have the 4 1/2 on a 3 leaf spring it barely has any threads will that change with the 4 leaf
Jerred H.
7/14/2026
Product Page this Question was Asked From
etrailer Rust-Resistant 4-Leaf Double Eye Spring for 4K Trailer Axles - 26" Long - Dacromet
- Trailer Leaf Springs
- Double Eye Springs
- 9/16 Inch Eye
- Nylon Bushings
- 4000 lbs
- 1-3/4 Inch Wide
- 4 Leaf
- 26 Inch Long
- Marine Grade
- etrailer
more information >
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Gavin D.
7/14/2026
Going with those springs i have a 2in square tube axle what size square bolt do you recommend getting